Automobile-bumper



F. GfWHiTTlNGTON.

AUTOMOBILE BUMPER.

APPLICA'HON FILED OCT. 2, 2920.

1,379,148, Memed May 24,, 1921.

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ZlEREDEPIK El. WHITTINGTON, OF CHICAGO. ILLINOIS, ASSIGNOR 'I'O STEWART-W'AIEENER'STPEEJJOMETER CORFORA'BION, OF CHICAGO, KLLINOIS, A CORPh;

RATION F VIRGINIA.

AUTOMOBILE-BUMPER.

ernias.

Specification of Letters Patent.

Patented May 24, 1921.

To all 11% am may concern Be it known that I, Fimninuu G. Wm'r-'rimrroiv, a citizen of i'he United States. re siding at the ciiy ofChicago, in the county of (ooh and the State of Illinois, have in ventedcertain new and useful improvemcnis in Auiomobile-BumperS, of which ihefollowing is aspccificatiou, reference being had to the accompanyingdrawings, forming a part thereof.

The purpose of this invention is to provide an improved constructionof'automobile bumper adapted to aiiord greater proiection and to bemanufactured at a lower cost than bumpers heretofore used. it consisisin the elements and features of construction shown and described, asindicated in 'izhe claim.

in. the drawings:

Figure l is a plan view and Fig. 2 is a from elevation of a bumperembodying this invention.

in ihe drawings the bumper shown as com 'arisingr an. impact' member andtwo spring-supporting arms bhereior, said arms being adapted foraitachmcnt, in some manner not shown, to the side bars of an automobile,the mode or means of attachment forming no part. of the presentinvention. The impairs member consists of a main bar, 1, havingiisopposite ends reflexcd rear \vardly and inwardly, to form invardlyopenresilient loops, and having the middle portion of its length betweenthese loops ileiiecicd edgrewisc out of alinemcnt with the end portions.as seen as l. The impact member is completed by adding a supple mentaliinpacl; bar 2, having its end portions lapped on the rear surface ofthe main impact bar, 1, jusi beyond ibc deflected portion, as seen at 2,and intcrmcdiately be tween these two end portions thus lapped, saidsupplemental bar is deflected cdgzewise in the opposite direction fromthe dcficction of the main impact bar at P, so that the two deflectedportions of the iwo bars cxiiend parallel to each other and spacedapart, a distance a 'iproximately the width of either of said' bars;though it is to be 3 is a, section at the line, 3-3 on understood thatthere is no definite functional relation between the width of thespacing and the width of the bars, the intent being only that the totaldistance from the upper edge of the upper deflected part of thesupplemental bar to the lower edge of the downwaidly-deflected part ofthe main bar, shall be sufiicient to cover the ordi nary range ofvariation in the heights of various bumpers as mounted on different;cars. to insure that in case of collision the collision shall besustained by the bumper, and that one bumper should not be able to passabove or below the other to the avoidance of such collision.

The supplemental bar, 2, is secured to the main impact bar 1, by clamps,3, 3, embracing ihe two bars at their lapped portions. W l

The impact member is carried by-rearweirdly-extending supporting arms,B, B, as stated, said supporting arms having their forward ends curvedoutwardly so as to project parallel to the impact member, and said endsare adapted to be engaged in the same clamps, 3, 3, which clamp the twobars of the impact member together, as" above described. v

The extent or" lap of the two barsof the impact member upon each other,within" which the outwardly-projected ends of the supporting arms, B, B,are lapped upon the rear lapping of said impact member bars, is designedto be suflicient to provide for any necessary variation in the lateralspread or distance apart of the two supporting arms, B, B, toaccommodate the bumper to cars having their side bars, to which thebumper is attached, differently spaced apart.

An automobile bumper comprising an impact member consisting of a flatbar having its endsrefiexed rearward and inward to form inwardly openresilient'loops, and its middle portion deflected edgew-ise to oil"- sot(he said middle portion vertically from the cud portions, and asupplemental-ban having the middle portion of its length similarlyoffset edgewise from the end portions, said supplemental bar having itsend portions lapped behind the portions of the main bar situated justbeyond the opposite ends of the deflected portion of said main bar;supporting arms for the impact meniher having their forward ends bent toprojee t transversely-1nd present vertical faces directly'forward. andclamps encompassing said transversely projecting end portions and thelapped ends of the supporting bar on the main banof the impact member.

In testimony whereof, I have hereunto set 0 mv hand at Chicago,Illinois, this 30th day of September. 1920.

FBEDERIK (L WI-IITTIUG'ION.

